Finding the Fourth Proportional to 19,222.92, 28,814.58 and 13,944.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,222.92 : 28,814.58 = 13,944.78 : x
2. Step 2: Convert to fraction form
   19,222.92/28,814.58 = 13,944.78/x
3. Step 3: Cross multiply
   19,222.92x = 28,814.58 × 13,944.78
4. Step 4: Simplify right side
   19,222.92x = 401,812,978.89
5. Step 5: Solve for x
   x = 401,812,978.89/19,222.92
6. Step 6: Final answer
   x = 20,902.81